CN213554098U

CN213554098U - Disposable metering type negative pressure drainage device

Info

Publication number: CN213554098U
Application number: CN202020747739.XU
Authority: CN
Inventors: 吴文琴; 肖红英; 陈晓芳; 尹媛
Original assignee: Peoples Hospital of Deyang City
Current assignee: Peoples Hospital of Deyang City
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-06-29
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a disposable metering type negative pressure drainage device, which belongs to the field of medical appliances. The disposable metering type negative pressure drainage device comprises a puncture part, a first drainage tube, a first drainage bottle and a second drainage tube which are connected in sequence, wherein the tail end of the second drainage tube is connected with a transparent second drainage bottle with an opening, the second drainage bottle is provided with a first scale, the opening of the second drainage bottle is provided with a detachable sealing cover, a piston is arranged in the first drainage bottle, a first through hole is formed in the piston, a transparent push rod which extends out of the first drainage bottle and penetrates through the sealing cover is arranged on the piston, the transparent push rod is provided with a second scale, a channel communicated with the first through hole is arranged in the middle of the transparent push rod, and one end, away from the first through hole, of the channel is communicated with the atmosphere; install first valve on the passageway, be provided with first annular arch on being located the transparent push rod outer wall between first valve and sealed lid, be located the cover and be equipped with the spring on the transparent push rod outer wall between first annular arch and the sealed lid.

Description

Disposable metering type negative pressure drainage device

Technical Field

The utility model relates to the field of medical auxiliary articles, concretely relates to disposable measurement formula negative pressure drainage ware.

Background

The disposable negative pressure drainage device comprises a first drainage tube with a puncture part, the other end of the first drainage tube is connected with a drainage bottle, and the drainage bottle is connected with a drainage bag through a second drainage tube. The volume of the drainage bottle is typically less than the volume of the drainage bag. In addition, in order to facilitate the patient getting out of bed, the drainage bottle and the drainage bag are detachably connected.

Medical personnel often need to determine whether or not continuous drainage is needed based on the latest fluid properties that are drained from the drainage bottle. If the drainage needs to be continued, the liquid in the drainage bottle is transferred into the drainage bag by using the open-close valve on the second drainage tube. Still need record single drainage volume (also be the liquid volume in the drainage bottle) simultaneously at patient drainage in-process, and at present generally directly based on the scale on the drainage bottle, record single drainage volume, this degree of accuracy that just leads to the single drainage volume of record is lower.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model aims at providing a disposable measurement formula negative pressure drainage ware that can improve single drainage volume record accuracy.

In order to achieve the purpose of the invention, the utility model adopts the technical scheme that:

the disposable metering type negative pressure drainage device comprises a puncture part, a first drainage tube, a first drainage bottle and a second drainage tube which are connected in sequence, wherein the tail end of the second drainage tube is connected with a transparent second drainage bottle with an opening, the second drainage bottle is provided with first scales, the opening of the second drainage bottle is provided with a detachable sealing cover, a piston is arranged in the first drainage bottle, a first through hole is formed in the piston, a transparent push rod which extends out of the first drainage bottle and penetrates through the sealing cover is arranged on the piston, the transparent push rod is provided with second scales, a channel communicated with the first through hole is arranged in the middle of the transparent push rod, and one end, away from the first through hole, of the channel is communicated with the atmosphere; install first valve on the passageway, be provided with first annular arch on being located the transparent push rod outer wall between first valve and sealed lid, be located the cover and be equipped with the spring on the transparent push rod outer wall between first annular arch and the sealed lid.

The utility model has the advantages that:

when the single drainage volume (namely the volume of the liquid in the first drainage bottle) needs to be recorded, the liquid in the first drainage bottle is transferred to the second drainage bottle by using the opening and closing valve, and then whether the liquid level is flush with the scale marks in the second scale is observed. If so, recording the volume of liquid at that time (i.e., this time); if not, the transparent push rod is slowly pressed downwards after the first valve is opened until the liquid level of the lower surface of the piston is flush with the scale which is below the initial liquid level and closest to the initial liquid level line, and the liquid level is kept. The reading of the first scale is then added to the reading of the second scale to obtain the volume of liquid at that time (i.e. this time). Then the external force applied to the transparent push rod is cancelled, and the first valve is closed and the valve is opened and closed. After the external force is cancelled, under the action of the spring, the transparent push rod and the piston automatically recover to the set position, so that the interface between the second drainage tube and the second drainage bottle (namely the liquid inlet of the second drainage bottle) is positioned below the piston, and a space is reserved for the next liquid to enter the second drainage bottle. The drainage quantity of this time is the volume of the last liquid-the volume of the liquid of this time, wherein the volume of the primary liquid is recorded as 0, so that the accuracy of the recorded single drainage quantity is improved.

Drawings

FIG. 1 is a partial cross-sectional view of a disposable metering negative pressure drainage device in an embodiment when the transparent push rod and the piston are restored to a set position;

FIG. 2 is a partial cross-sectional view of the disposable metering negative pressure flow diverter after the transparent push rod is pressed excessively in the embodiment shown in FIG. 1.

Wherein, 1, a transparent push rod; 2. a first valve; 3. a limiting bulge; 4. a flexible second annular projection; 5. A connecting rod; 6. a float member; 7. a first annular projection; 8. a channel; 9. a sealing cover; 10. a second drainage bottle; 11. a piston; 12. a second draft tube; 13. a first through hole; 14. a spring; 15. an air inlet pipe; 16. a second valve; 17. circular truncated cone side wall type; 18. a liquid; 19. and (4) sinking the platform.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings so as to facilitate the understanding of the present invention by those skilled in the art. It should be understood that the embodiments described below are only some embodiments of the invention, and not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step, without departing from the spirit and scope of the present invention as defined and defined by the appended claims, fall within the scope of protection of the invention.

As shown in fig. 1 and 2, the disposable metering type negative pressure drainage device comprises a puncture part, a first drainage tube, a first drainage bottle and a second drainage tube 12 which are connected in sequence. 12 end-to-end connection of second drainage tube has transparently, and open-ended second drainage bottle 10 has, be provided with first scale on the second drainage bottle 10, the sealed lid 9 of detachable is installed to the opening part of second drainage bottle 10, install piston 11 in the first drainage bottle, first through-hole 13 has been seted up on the piston 11, install on the piston 11 and extend to outside the first drainage bottle, and run through the transparent push rod 1 of sealed lid 9, be provided with the second scale on the transparent push rod 1, be provided with the passageway 8 with first through-hole 13 intercommunication in the middle of the transparent push rod 1, the one end and the atmosphere intercommunication of first through-hole 13 are kept away from to passageway 8. Install first valve 2 on the passageway 8, be provided with first annular arch 7 on being located the transparent push rod 1 outer wall between first valve 2 and sealed lid 9, be located the cover on the transparent push rod 1 outer wall between first annular arch 7 and the sealed lid 9 and be equipped with spring 14.

As shown in fig. 1 and 2, in order to avoid the nurse from excessively pressing the transparent push rod 1, which results in the overflow of the liquid 18 in the second drainage bottle 10 along the channel 8, the disposable metering type negative pressure drainage device in the scheme further comprises an air inlet pipe 15 and an automatic sealing element arranged on the channel 8 between the first valve 2 and the first annular protrusion 7, the air inlet pipe 15 is provided with a second valve 16, one end of the air inlet pipe 15 is communicated with the channel 8 between the automatic sealing element and the first annular protrusion 7, and the other end is communicated with the channel 8 between the automatic sealing element and the first valve 2.

The second valve 16 is kept closed until the volume of liquid 18 at that time is recorded, and an automatic seal closes the channel 8 when the level of liquid in the channel 8 rises to a set value, thereby avoiding spillage of the liquid 18 through the channel 8. After the volume recording of the liquid 18 is completed, the external force applied to the transparent push rod 1 is removed and the second valve 16 is opened, then under the action of the spring 14, the liquid level in the channel 8 gradually descends, and simultaneously the transparent push rod 1 and the piston 11 automatically recover to the set position, so that a space is reserved for the next time of entering the liquid 18 in the second drainage bottle 10. After which the first valve 2, the second valve 16 and the opening and closing valve are closed.

Specifically, as shown in fig. 1 and 2, a sinking platform 19 is arranged on the inner wall of the channel 8 between the first valve 2 and the first annular protrusion 7, the inner wall of the channel 8 at the setting section below the sinking platform 19 is a circular truncated cone side wall type 17, the automatic sealing element comprises a connecting rod 5 located in the channel 8, a limiting protrusion 3 (the top view of the limiting protrusion 3 can be rectangular) matched with the sinking platform 19 is arranged at one end of the connecting rod 5 located on the sinking platform 19, a flexible second annular protrusion 4 matched with the inner wall of the channel 8 at the setting section is arranged on the connecting rod 5 below the sinking platform 19, and a floating element 6 is arranged at one end of the connecting rod 5 below the second flexible annular protrusion 4. Wherein the float member 6 may be spherical.

After the liquid level in the channel 8 reaches a certain value, along with the gradual rise of the liquid level in the channel 8, the float piece 6 rises synchronously under the buoyancy (connecting rod 5, flexible second annular bulge 4, spacing bulge 3 and float piece 6 move synchronously all the time) until the flexible second annular bulge 4 abuts against the inner wall of the set section channel 8 to form a seal, and then the automatic closing of the channel 8 is realized. After the second valve 16 is opened, the liquid 18 in the channel 8 descends under the action of the spring 14, and in the initial process of descending, the floating piece 6 descends synchronously (so that the flexible second annular bulge 4 is separated from the inner wall of the channel 8 at the set section) until the floating piece 6 stops descending under the action of the limiting bulge 3.

Meanwhile, in order to avoid the phenomenon that after the spring 14 is compressed, the adjacent circles on the spring 14 are excessively gathered to influence the observation of the second scale close to the spring 14, and the distance between every two circles of the spring 14 is larger. Particularly, when the piston 11 is positioned at the bottom of the second drainage bottle 10, the distance between adjacent circles on the spring 14 is preferably greater than 1 cm.

In order to facilitate the pushing of the transparent push rod 1, the outer profile of the cross section of the transparent push rod 1 is square or rhombic, the sealing cover 9 is provided with a guide hole matched with the transparent push rod 1, the arrangement of the sealing cover 9 also prevents the piston 11 from dropping off the second drainage bottle 10, and the piston 11 is made of medical rubber. Wherein, the sealing cover 9 is connected with the second drainage bottle 10 through a thread pair, and a sealing ring is arranged on the sealing cover 9 close to the thread pair.

Claims

1. The disposable metering type negative pressure drainage device comprises a puncture part, a first drainage tube, a first drainage bottle and a second drainage tube (12) provided with an opening and closing valve, wherein the puncture part, the first drainage tube, the first drainage bottle and the second drainage tube are sequentially connected, the tail end of the second drainage tube (12) is connected with a transparent second drainage bottle (10) with an opening, a first scale is arranged on the second drainage bottle (10), a detachable sealing cover (9) is arranged at the opening of the second drainage bottle (10), a piston (11) is arranged in the first drainage bottle, a first through hole (13) is formed in the piston (11), a transparent push rod (1) extending out of the first drainage bottle and penetrating through the sealing cover (9) is arranged on the piston (11), a second scale is arranged on the transparent push rod (1), a channel (8) communicated with the first through hole (13) is arranged in the middle of the transparent push rod (1), one end of the channel (8) far away from the first through hole (13) is communicated with the atmosphere;

install first valve (2) on passageway (8), be provided with first annular arch (7) on transparent push rod (1) outer wall that is located between first valve (2) and sealed lid (9), be located transparent push rod (1) outer wall between first annular arch (7) and sealed lid (9) and overlap and be equipped with spring (14).

2. The disposable metering type negative pressure flow diverter according to claim 1, further comprising an air inlet pipe (15) and an automatic sealing member arranged on a channel (8) between the first valve (2) and the first annular protrusion (7), wherein a second valve (16) is arranged on the air inlet pipe (15), one end of the air inlet pipe (15) is communicated with the channel (8) between the automatic sealing member and the first annular protrusion (7), and the other end of the air inlet pipe is communicated with the channel (8) between the automatic sealing member and the first valve (2).

3. The disposable metering type negative pressure flow diverter according to claim 2, characterized in that a sinking platform (19) is arranged on the inner wall of the channel (8) between the first valve (2) and the first annular bulge (7), the inner wall of the channel (8) at the setting section below the sinking platform (19) is a circular platform side wall type (17), the automatic sealing element comprises a connecting rod (5) positioned in the channel (8), a limiting bulge (3) matched with the sinking platform (19) is arranged at one end of the connecting rod (5) positioned on the sinking platform (19), a flexible second annular bulge (4) matched with the inner wall of the channel (8) at the setting section is arranged on the connecting rod (5) positioned below the sinking platform (19), and a floating piece (6) is arranged at one end of the connecting rod (5) positioned below the flexible second annular bulge (4).

4. The disposable metering negative pressure flow diverter of claim 3, wherein the float (6) is spherical.

5. The disposable metering negative pressure flow diverter of claim 1, wherein the transparent push rod (1) has a cross section with an external contour of a square or diamond shape.

6. The disposable metering type negative pressure drainage device according to claim 1, wherein the sealing cover (9) is connected with the second drainage bottle (10) through a thread pair, and a sealing ring is arranged on the sealing cover (9) close to the thread pair.

7. The disposable metering type negative pressure drainage device according to any one of claims 1 to 6, wherein the piston (11) is made of medical rubber.